When I looked into the issue of USB-C hubs some time ago, all I could find is this claim in a blog article [0] that suitable chips for such USB-C-hubs are not available:
> Update (2018-07-30): Accidental Tech Podcast reports on a rumor that next year Intel will finally ship the chip that’s needed for making a USB-C that adds additional type-C ports.
> Update (2018-07-30): Accidental Tech Podcast reports on a rumor that next year Intel will finally ship the chip that’s needed for making a USB-C that adds additional type-C ports.
[0] https://mjtsai.com/blog/2017/10/14/the-impossible-dream-of-u...